Mitigate the effects of DC interferance and Telluric currents with Variable Resistance Grounding
Variable Resistance Grounding provides precise adjustment of the drained current
SMC10 Smart Mitigation Cell
SMC10 is a Smart Mitigation Cell which allows controlled DC current drain to ground in the situations where AC, DC interference or telluric effect cause over protection on a cathodically protected structure.
The structure to reference value is constantly compared to the desired set value by monitoring a reference electrode. When the reference value exceeds the set value, SMC10 drains appropriate current to the ground so that the protection potential is exactly at the desired point. Variable Resistance Grounding provides precise adjustment of the drained current within a very large range. SMC10 drains AC interferences directly to ground continuously to minimize the AC influence on the protection. SMC10 can also be used to drain excessive current caused by large AC interference between Anode to Cathode connections of the CP rectifiers.
SMC10 becomes open-circuit for the DC currents when the protection potential is below the desired point and behaves in just the same manner as a normal polarization cell.
SMC10 includes an industry standard RS485 MODBUS port for connection to SCADA systems. AC, DC currents, Reference to Structure potentials can be monitored over SCADA.